www.lakeland.co.uk/23438/Shark-2-in-1-Electronic-Steam-Mop I got this one from Lakeland based on recommendations on here. I wanted it mainly for floors (engineered oak in kitchen and tiled hall) and have been very pleased with the results. The hand held unit is less impressive on grout, but maybe the dirt is just too ingrained - back to scrubbing with a toothbrush and bleach! Haven't tried cleaning the oven yet, but based on the grout experience I'm not expecting miracles.

I've got a Domena CS6. It was expensive (wedding present) but well worth the investment. You can refill it while it's working. You can also plug an iron on it (about £60) which is much cheaper than an equally powerful steam generator.